The circumstellar environments of intermediate mass main sequence stars

Details The circumstellar environments of intermediate mass main sequence stars The circumstellar environments of intermediate mass main sequence stars

Jul 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993arcl.reptq....g&link_type=abstract

Final Report Applied Research Corp., Landover, MD.

Astronomy and Astrophysics

Astronomy

Main Sequence Stars, Pre-Main Sequence Stars, Stellar Envelopes, Stellar Evolution, Stellar Spectra, A Stars, B Stars, Infrared Astronomy Satellite, Iue, Star Formation

Scientific paper

Analysis of archival Infrared Astronomy Satellite (IRAS) and International Ultraviolet Explorer (IUE) data resulted in identification of accreting gas toward a 2.8 Myr post-Herbig Be star in the R CrA star formation region, and identification of accreting gas toward HD 93563, previously identified as a classical Be star. Accreting gas was also detected toward two B(e) stars of previously controversial evolutionary state, resulting in identification of these systems as pre-Main Sequence Herbig Be stars viewed edge-on to their circumstellar disks. In parallel with this effort, accreting gas was detected toward the Herbig Ae star HR 5999, resulting in development of identification criteria for edge-on PMS proto-planetary disk systems. The work on individual stars is described.

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